ul,li{
    padding: 0;
    margin: 0;
    list-style: none;
}
#adver{
    margin: 0 auto;
	width: 590px;
	overflow: hidden;
	height: 470px;
	position: relative;
	background: url("../img/chrome-big.jpg");
}
ul{
    position: absolute;
    bottom: 10px;
	z-index: 100;
	width: 100%;
	text-align: center;
}
ul li{
    display: inline-block;
    font-size: 10px;
    line-height: 20px;
    font-family: "微软雅黑";
    margin: 0 1px;
    width: 20px;
	height: 20px;
	border-radius: 50%;
	background: #333333;
	text-align: center;
	color: #ffffff;
}
#arrowLeft,

#arrowRight {
	position: absolute;
	width: 30px;
	background: rgba(0, 0, 0, 0.2);
	height: 40px;
	line-height: 40px;
	text-align: center;
	top: 200px;
	z-index: 150;
	font-family: "微软雅黑";
	font-size: 25px;
	font-weight: bold;
	cursor: pointer;
	display: none;
	color:snow;
}
 
#arrowLeft {
	left: 10px;
}
 
#arrowRight {
	right: 10px;
}
 
bg{
	background: orange;}